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ASUS P8Z77-V

This page describes how to run coreboot on the ASUS P8H77-V.

Flashing coreboot

+---------------------+----------------+
| Type                | Value          |
+=====================+================+
| Socketed flash      | yes            |
+---------------------+----------------+
| Model               | W25Q64FVA1Q    |
+---------------------+----------------+
| Size                | 8 MiB          |
+---------------------+----------------+
| Package             | DIP-8          |
+---------------------+----------------+
| Write protection    | yes            |
+---------------------+----------------+
| Dual BIOS feature   | no             |
+---------------------+----------------+
| Internal flashing   | no             |
+---------------------+----------------+

The flash IC is located beside the SATA ports (circled):

How to flash

The main SPI flash cannot be written because the vendor firmware disables BIOSWE and enables BLE/SMM_BWP flags in BIOS_CNTL for their latest BIOSes. An external programmer is required. You must flash standalone, flashing in-circuit doesn't work. The flash chip is socketed, so it's easy to remove and reflash.

Working

  • PS/2 keyboard with SeaBIOS 1.14.0 and Debian GNU/Linux with kernel 5.10.28
  • Integrated Ethernet NIC
  • S3 Suspend to RAM
  • USB2 on rear and front panel connectors
  • USB3
  • Integrated SATA
  • CPU Temp sensors (tested PSensor on GNU/Linux)
  • Native raminit
  • Integrated graphics with libgfxinit (VGA/DVI-D/HDMI tested and working)
  • PCIe in PCIe-16x slots
  • Debug output from serial port

Untested

  • EHCI debugging
  • S/PDIF audio
  • PS/2 mouse

Technology

+------------------+--------------------------------------------------+
| Northbridge      | :doc:`../../northbridge/intel/sandybridge/index` |
+------------------+--------------------------------------------------+
| Southbridge      | bd82x6x                                          |
+------------------+--------------------------------------------------+
| CPU              | model_206ax                                      |
+------------------+--------------------------------------------------+
| Super I/O        | Nuvoton NCT6779D                                 |
+------------------+--------------------------------------------------+
| EC               | None                                             |
+------------------+--------------------------------------------------+
| Coprocessor      | Intel Management Engine                          |
+------------------+--------------------------------------------------+

Extra resources